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Corporate Office: Registered Office: Star 1, Opp IIM Bangalore, Bilekahalli, Cyber One, Unit No. 902, Sector 30A, Bannerghatta Road, Bengaluru – Plot No - 4 & 6, Vashi, 560076, India Navi Mumbai - 400703, India T: +91 80 6784 0738 T: +91 22 2789 2924 Date: August 31, 2026 BSE Limited National Stock Exchange of India Ltd Phiroze Jeejeebhoy Towers Exchange Plaza, C-1, Block G, Dalal Street Bandra Kurla Complex, Mumbai- 400001 Bandra (E) Mumbai – 400 051 Scrip Code: 544292 Symbol: ONESOURCE Dear Sir/ Madam, Subject: Submission of Business Responsibility & Sustainability Report (BRSR) for FY26 Pursuant to Regulation 34(2)(f) of SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015, please find enclosed the Business Responsibility & Sustainability Report (BRSR) for the financial year ended March 31, 2026. This is for information and records. For and on behalf of OneSource Specialty Pharma Limited Trisha A Company Secretary and Compliance Officer Membership Number: A47635 OneSource Specialty Pharma Limited info@onesourcecdmo.com | www.onesourcecdmo.com CIN: L74140MH2007PLC432497 Corporate Overview Statutory Reports Financial Statements Business Responsibility & Sustainability Report SECTION A: GENERAL DISCLOSURES I. Details of the listed entity 1. Corporate Identity Number (CIN) of the Listed Entity: L74140MH2007PLC432497 2. Name of the Listed Entity: OneSource Specialty Pharma Limited 3. Year of incorporation: 2007 4. Registered office address: Unit No. 902, Cyber One Plot No - 4 & 6, Sector 30A, Vashi, Navi Mumbai-400703 5. Corporate address: Star 1, Opp IIM Bengaluru Bilekahalli, Bannerghatta Road, Bengaluru South, Karnataka, India-560076 6. E-mail: info@onesourcecdmo.com 7. Telephone: +91 80 6784 0738 8. Website: https://www.onesourcecdmo.com/ 9. Financial year for which reporting is being done: FY26 (April 01, 2025 to March 31, 2026) 10. Name of the Stock Exchange(s) where i) The National Stock Exchange of India Limited (NSE) shares are listed: ii) BSE Limited (BSE) 11. Paid-up Capital: ` 11,46,21,201 12. Name and contact details (telephone, email address) Name: Trisha A of the person who may be contacted in case of any Designation: Company Secretary & Compliance Officer queries on the BRSR report: Email: CS@onesourcecdmo.com Address: Star 1, Opp IIM Bengaluru, Bilekahalli, Bannerghatta Road, Bengaluru – 560076, India 13. Reporting boundary: All disclosures in this BRSR are on Standalone basis, unless otherwise mentioned 14. Name of assessment or assurance provider: SGS India Private Limited 15. Type of assessment or assurance obtained: Reasonable Assurance for Core Indicators II. Products/services 16. Details of business activities (accounting for 90% of the turnover): Description of Main Activity Description of Business Activity % of turnover of the entity 1. Manufacturing Manufacture of Pharmaceutical products 100% 17. Products/Services sold by the entity (accounting for 90% of the entity’s Turnover): Product/Service NIC Code % of Turnover of the entity 1. Manufacture of Pharmaceutical products 21001 100% III. Operations 18. Number of locations where plants and/or operations/offices of the entity are situated: Location Number of plants Number of offices Total National 5 in Bengaluru (4 owned by 3 7 OneSource and 1 under loan license agreement) International None 3 3 Integrated Annual Report 2025-26 187 19. Markets served by the entity: a. Number of locations National* States Locations International Countries *We do not market products in India directly b. What is the contribution of exports as a percentage of the total turnover of the entity? 70.80% on a standalone basis (“Total turnover” considered for the calculation includes Other Income) c. A brief on types of customers: Our customer base includes small and large pharmaceutical companies and group purchasing organisations IV. Employees 20. Details as at the end of Financial Year: a. Employees and workers (including differently abled): S. Male Female Particulars Total (A) No. No. (B) %(B/A) No. (C) % (C/A) EMPLOYEES 1. Permanent Employees (D) 1,200 1,021 85% 179 15% 2. Other than Permanent Employees (E) - - - - - 3. Total employees (D + E) 1,200 1,021 85% 179 15% WORKERS 4. Permanent Workers (F) 474 426 90% 48 10% 5. Other than Permanent Workers (G) 615 569 93% 46 7% 6. Total workers (F + G) 1,089 995 91% 94 9% Employees and workers have been categorised as follows: “Permanent Employees” includes all permanent employees on rolls of the Company “Permanent Workers” includes all operators on the rolls of the Company “Other than Permanent Workers” includes all individuals hired through third party vendors such as administration, security, housekeeping, etc. Note: Contractual personnel have been reclassified from “Other than Permanent Employees” to “Other than Permanent Workers” in the current reporting period in alignment with the Industrial Relations Code, 2020. This change is solely a disclosure reclassification and has no impact on the Company’s workforce composition or employee base. b. Differently abled Employees and workers: S. Male Female Particulars Total (A) No No. (B) %(B/A) No. (C) % (C/A) DIFFERENTLY ABLED EMPLOYEES 1. Permanent Employees (D) Nil 2. Other than Permanent Employees (E) Nil 3. Total differently abled employees (D + E) Nil DIFFERENTLY ABLED WORKERS 4. Permanent Workers (F) Nil 5. Other than Permanent Workers (G) Nil 6. Total differently abled workers (F + G) Nil 188 OneSource Specialty Pharma Limited Corporate Overview Statutory Reports Financial Statements 21. Participation/Inclusion/Representation of women No. and percentage of Females Total (A) No. (B) % (B/A) Board of Directors 8 1 13 Key Management Personnel (KMP) 3 1 33 Note: Neeraj Sharma, Managing Director, is also a KMP and is included in both categories. 22. Turnover rate for permanent employees and workers (Disclose trends for the past 3 years) FY26 FY25 FY24 Male Female Total Male Female Total Male Female Total Permanent Employees 24% 16% 23% 27% 25% 27% 21% 23% 36% Permanent Workers 1% 0% 1% 1% 0% 1% NA NA NA V. Holding, Subsidiary and Associate Companies (including joint ventures) 23. (a) Names of holding / subsidiary / associate companies / joint ventures Does the entity indicated Name of the holding/ Indicate whether % of shares at column A, participate in S. subsidiary/ associate holding/ Subsidiary/ held by the Business Responsibility No. companies/ joint ventures Associate/ Joint listed entity initiatives of the listed entity? (A) Venture (Yes/No) The details of the holding/subsidiary/associate/joint venture companies are provided in Form No AOC-1, which is an annexure to the Board’s Report. Refer page 152 of the annual report. VI. CSR Details 24. (i) Whether CSR is applicable as per section 135 of Companies Act, 2013: No (ii) Turnover (in `): ₹14,204 million (Standalone basis and includes Other Income) (iii) Net worth (in `): ₹59,430.95 million (Standalone basis) VII. Transparency and Disclosures Compliances 25. Complaints/Grievances on any of the principles (Principles 1 to 9) under the National Guidelines on Responsible Business Conduct: FY26 FY25 Grievance Redressal Stakeholder Number of Number of Mechanism in Place group from Number of complaints Number of complaints (Yes/No) (If Yes, then whom complaints pending complaints pending provide web-link for Remarks Remarks complaint is filed during resolution filed during resolution at grievance redress received the year at close of the year close of the policy) the year year Communities Yes. The Company’s Nil Nil - Nil Nil - CSR team engages proactively with relevant stakeholders, including Panchayat members to initiate appropriate actions as needed Investors Yes. For any grievance, Nil Nil - Nil Nil - (other than investors can write to shareholders) us at: investor-relations@ onesourcecdmo.com Integrated Annual Report 2025-26 189 FY26 FY25 Grievance Redressal Stakeholder Number of Number of Mechanism in Place group from Number of [Showing first 8,000 characters — download PDF for full document]